Geographic reference
Mercer County, New Jersey
Mercer County is a county or county-equivalent in New Jersey.
Reference details
- State
- New Jersey (NJ)
- Census GEOID
- 34021
- Land area
- 581.405 km²
- Water area
- 11.328 km²
- Representative point
- 40.282503, -74.703724
View point on map ↗
Geographic facts: 2026 U.S. Census Gazetteer. Coordinates identify a representative point, not the full geographic boundary.